baber/WOPTO huggingface dataset:
Patent GB-1340830-A (GB)
Title: Memory cell
IPC: H01L21/8247
Filed: 1972-12-01
Abstract: 1340830 Semi-conductor memory devices INTERNATIONAL BUSINESS MACHINES CORP 1 Dec 1972 [20 Dec 1971] 55489/72 Heading H1K A memory device consists of a silicon gated N-channel enhancement mode IGFET with a bi-stable switching diode consisting of a layer of niobium oxide sandwiched between layers of niobium and bismuth disposed on and wholly within the periphery of its drain region. A matrix of devices may be formed on a P-type silicon wafer by oxidizing its surface and etching the oxide to expose the device sites, depositing polycrystalline silicon overall and pattern etching it to delineate the gates and strips interconnecting them in rows and to expose the P type silicon at the source and drain sites, after which the source and drain regions are formed and the remaining polycrystalline silicon doped by donor diffusion. Electrodes are formed on these regions by alloying platinum to them, after which niobium is deposited on the drain electrode and its surface wet anodized and then coated with bismuth. The matrix is completed by provision of pairs of aluminium strips interconnecting the source and bismuth electrodes respectively in columns. Information is stored by applying word address signals to the silicon row conductors and appropriately poled bit writing signals between pairs of aluminium strips to switch the diode to its high or low resistance state. It is read out by gating the appropriate IGFET on and sensing whether or not a small voltage applied across the series circuit of the source-drain path and diode produces a current.
Patent GB-1457518-A (GB)
Title: Filter centrifige and a method of operating the same
IPC: B04B3/04
Filed: 1973-11-29
Abstract: 1457518 Centrifuges KRAUSS-MAFFEI AG 29 Nov 1973 [11 Dec 1972 19 June 1973] 55537/73 Heading B1D A filter centrifuge comprising a chamber for receiving filtrate and having at least one discharge aperture, is constructed so that, in use, an annular body of liquid having a first and a second leg is formed, the level of the first leg being radially inwards of the second leg whereby the difference in the levels produces a suction to aid the flow of liquid through the filter of the centrifuge. In use, gas is prevented from entering the chamber through the discharge aperture(s). In Fig. 1 drum 1 is mounted in housing 20, has chamber 5 with discharge apertures 12, and supports filter medium 6. Prior to filtering, liquid is fed through pipe 19 to discharge gas from chamber 5. Liquid to be filtered is introduced through nozzle 16 and an annular body of liquid is formed, the level of the first leg of which being adjacent the filter medium 6 and the level of the second leg being determined by the position of plvotable filtratedischarging tube 19. Cake 7 is removed by means 17. The pressure inside housing 20 may be increased by introduction of gas through pipe 21. The level of the second leg may be determined by an overflow. A valve for controlling rate of filtrate discharge may be positioned upstream or downstream of the overflow. A pump for withdrawing gas from the chamber may be provided internally or externally of the drum. The pump may be a jet pump operated by filtrate or other liquid. The chamber may be defined in part by the housing.
Patent GB-1243073-A (GB)
Title: Process for chemical nickel plating of aluminium and its alloys
IPC: C23C18/36
Filed: 1968-11-25
Abstract: 1,243,073. Electroless coating of Al with Ni; electro-plating; anodizing. STAUFFER CHEMICAL CO. Nov. 25, 1968 [Dec.4, 1967], No. 55728/68. Headings C7B and C7F. In an electroless process of coating Al or Al alloys with Ni, the Al is degreased, immersed in an aqueous solution of HF and then coated in an acid bath containing Ni ions, hypophosphite ions, fluoborate and/or sulphamate ions, 1-5 gms/l of fluoride ions. Degreasing may be effected in a solution containing 2% NaOH and 4g/l sodium gluconate and the HF solution preferably contains 3-8% HF. The Ni coating bath may contain nickel fluoborate, nickel sulphamate, sodium hypophosphite, boric acid, acetic acid, glycolic acid, ammonium fluoride, thiourea and a wetting agent. The coated Al may then be electro-plated with (a) Cr or with (b) Cu then Ni and then Cr or with (c) Ni then Ni then Cr. In a modified process a high Si Al alloy is etched in HF, anodized and then activated with PdCl 2 , optionally after sensitizing with SnCl 2 , prior to electroless deposition of Ni.
Patent GB-1417404-A (GB)
Title: Photosensitive compositions
IPC: C07D307/52
Filed: 1972-12-04
Abstract: 1417404 Substituted acrylamides LUBRIZOL CORP 4 Dec 1972 55923/72 Heading C2C [Also in Division C3] Substituted acrylamides of the formula where X= is H 2  = or Y where Y is R 7 CH=, R 1 -R 5  are H or a hydrocarbon or substituted hydrocarbon radical or (R 2 +R 3 ) can be Y, provided that at least one of X or (R 2 +R 3 ) is Y, R 6  is H, halogen or C 1-7  alkyl and R 7  is a hydrocarbon or substituted hydrocarbon radical containing olefinic or aromatic unsaturation which is conjugated with the double bond in Y, are prepared by reacting an aldehyde of the formula R 7 CHO with a substituted acrylamide of the formula in the presence of an alkaline reagent. In examples the starting material is diacetone acrylamide and the aldehyde reactant is furfural, benzaldehyde, p-chlorobenzaldehyde, p-methylbenzaldehyde, p-phenylbenzaldehyde, cinnamaldehyde, sodium o-benzaldehydesulphonate or terephthalaldehyde.
Patent GB-1164500-A (GB)
Title: Process for the Preparation of Epoxides
IPC: C07D303/04
Filed: 1966-12-19
Abstract: 1,164,500. Preparation of epoxides. RHONEPOULENC S.A. 19 Dec., 1966 [17 Dec., 1965], No. 56791/66. Heading C2C. Epoxides of the general formula wherein R 1  represents an aromatic hydrocarbon radical which is optionally substituted, and R 2  represents an aromatic hydrocarbon radical which is optionally substituted, a hydrogen atom or an alkyl radical, are obtained by reacting an aldehyde or ketone of the formula with a reducing agent obtained by ageing a solution of an alkali metal in a triaminophosphine oxide, or by reaction of an alkali metal with a diorganophosphite, and treating the product of the reduction with a proton donor. Suitable triaminophosphine oxides have the formula and suitable diorganophosphites have the formula wherein R<SP>1</SP> is a C 1-4  alkyl radical. The reduction may be effected in an inert diluent at - 30 to 0 C. and the product of the reduction may be treated with water as the proton donor.
Patent GB-1203429-A (GB)
Title: Method and apparatus for producing preformed tile panels
Inventor: JOHNSON RUSSELL WOODROW
IPC: B29C39/32
Filed: 1967-12-14
Abstract: 1,203,429. Moulding tile panels. R. W. JOHNSON and C. R. ENRIGHT. 14 Dec, 1967, No. 56900/67. Heading B5A. In a process of making tile panels, the tiles are arranged on a support in the desired spaced pattern, and are then picked-up by a resilient pad by applying a vacuum through said pad, a curable resin then being applied to one face of the tiles and to the spaces therebetween. A supply of tiles 16, Fig. 1, is dumped on to a board 10 on a vibratory assembly which locates the tiles in the spaced pattern determined by the grid pattern formed by longitudinal and transverse ribs on the board. The board 10 with the tiles thereon is then placed on an aligning frame 26, 27, 28, Fig. 4, on a platform 25. A manifold hood assembly 36, 37, 38 comprising a plate 36 having a plurality of bores 40 in which are located spool elements 55 which pass through holes in a resilient pad 56 is then located over the tiles so that the flanges of the spools abut the tiles and, by application of vacuum to chambers 65 and 38, the peripheral seating element 62 of the manifold hood is compressed and the tiles are attached to the resilient pad, application of pressure to the chamber 65 then causing the manifold assembly to be raised with the tiles. Using a pattern board, a predetermined quantity of resin is deposited on a support 75, Fig. 8, having heat exchange channels and the manifold assembly with the tiles is placed on said resin. The chamber 65 is again connected to vacuum to compress the sealing element 62 and to spread the resin and to draw it into the spaces between the tiles where it meets the pad 56. When the resin is cured air under pressure is supplied to the chambers 65 and 38 and the tile panel, Fig. 10, is removed. In a modification, Fig. 14, the support plate 140 has a grid pattern of ribs 141. In another example, Fig. 18, the tiles are fed to and are aligned on blocks on an endless conveyer from which they are removed by a manifold assembly 190 carried by a rotary arm 195 which is indexed successively through a pick-up station over the conveyer 160, a deposit position over the support member 172 and a delivery position over a take away conveyer. The resin is supplied through a metering device. In another example, Fig. 21, the support board or platen 306, the manifold hood assembly 305 and the aligning assembly 307 are mounted in a rectangular frame in which the centrally located manifold can be rotated through 180 degrees by a handle 336 and the platen 306 and assembly 307 are reciprocable inwardly and outwardly so that the assembly 307 may be brought below the manifold for transfer of the arranged tiles thereto and the heated platen can be positioned over the manifold for application of the resin.
Patent GB-1279520-A (GB)
Title: Foam device for attachment to a fire hose
Inventor: HOUT NORMAN CHARLES
IPC: A62C3/02
Filed: 1970-12-02
Abstract: 1279520 Spray producers N C HOUT 2 Dec 1970 57353/70 Heading B2F Foam is sprayed by passing the foam solution through a nozzle attachment consisting of two concentric sleeves 1 and 4, an annular Venturi passage 3 being formed between the sleeves at the flared portions thereof and another Venturi passage being between the sleeves at the outflow end of the inner sleeve 4, and a frusto-conical foraminous screen 13 which is positioned at the forward end of the inner sleeve 4, this screen having an opening 16 through it at its apex. A spray nozzle (not shown) connected by a screw-thread at 10 is directed towards this screen, the angle of divergence of the spray being variable so that the bulk of the solution either passes through the screen or through the opening 16, the spray foaming less in the latter case than in the former but having greater reach. The attachment is used in fire extinguishing.
Patent GB-1221596-A (GB)
Title: Benzimidazole derivatives
Inventor: BOCHIS RICHARD JOHN
IPC: A61K31/415
Filed: 1968-12-04
Abstract: 1,221,596. 2 - (3 - Oxothiazolyl) benzimidazoles. MERCK & CO. Inc. 4 Dec., 1968 [6 Dec., 1967; 12 Nov., 1968], No. 57578/68. Heading C2C. [Also in Division A5] Novel-2-(3-oxothiazolyl) benzimidazoles of the formula wherein R 1  is 3-oxothiazol-4-yl or 3-oxothiazol- 2-yl; R 2  is H, OH, C 1-8  alkoxy, C 1-8  alkyl, aralkyl, C 1-8  alkanoyl, C 1-8  alkanoyloxy, carboxy (C 1-8  alkoxy), carbamoyl, N-(C 1-8  alkyl)- carbamoyl or alkoxy carbonyl; R 3  and R 4  are H, C 1-8  alkyl, C 1-8  alkoxy, aryl, aryloxy, C 1-8 - alkylthio, arylthio, NH 2 , C 1-8  alkylamino, di- (C 1-8  alkyl) amino, NO 2 , halogen, halo-(C 1-8 - alkyl) halophenyl, C 1-8  alkylphenyl, C 1-8  alkoxyphenyl, C 1-8  alkylthiophenyl, C 1-8  alkylaminophenyl, di-(C 1-8  alkyl) aminophenyl, imidazolyl, isothiazolyl, thiadiazolyl, furyl, pyrrolyl or R 6 -C( = X)-N(R 5 )- wherein R 5  is H or C 1-8 - alkyl; X is O or S; and R 6  is H, C 1-8  alkyl, halo (C 1-8  alkyl), C 1-8  alkoxy, halo (C 1-8  alkoxy), C 1-8  alkylthio, halo (C 1-8  alkylthio), aryl, aryloxy, arylthio, cycloalkyl, aralkyl, heteroaryl, heteroaryloxy, heteroarylthio, C 1-8  alkylamino, di-(C 1-8  alkyl) amino or an alkyleneimino radical whose chain is optionally by hetero atoms; provided that only one of R 3  and R 4  can be R 6 -(=X)-N(R 5 )- and the non-toxic pharmaceutically acceptable acid addition salts and heavy metal salt complexes of those compounds in which R 2  represents an hydrogen atom are prepared by oxidizing the corresponding 2-(thiazolyl) benzimidazole with an organic peracid. Alternatively compounds of the above general formula where R 3  or R 4  is NH 2  may be prepared by hydrolysing the corresponding compound in which R 3  or R 4  is of the carbamate, thionocarbamate, carbonylamino or thiocarbonylamino type. Compounds of the above general formula in which R 3  or R 4  is an alkoxycarbonylamino, benzoylamino, or p-fluorobenzoylamino, may also be made by reacting the appropriate compounds in which R 3  or R 4  is NH 2  with an alkyl chloroformate, benzoyl chloride or p-fluorobenzoyl chloride, respectively.
Patent GB-1188142-A (GB)
Title: Surgical Gown
IPC: A41D13/12
Filed: 1967-04-07
Abstract: 1,188,142. Surgical gowns. JOHNSON & JOHNSON. 7 April, 1967 [12 April, 1966], No. 58041/69. Divided out of 1,188,141. Heading A3V. [Also in Division B8] A disposable surgical gown comprises a main panel 2, sleeves 3 connected thereto, a front or back divided to form flaps 4, 5 of which one overlies the other to close the gown, closure means 10, 11 on the flaps 4, 5 respectively and gripping means on the outer surface of the overlying flap 5 adjacent the closure means to facilitate aseptic closing of the gown. The closure means 10, 11 are pressure-sensitive strips and further strips may be vertically spaced along the gown. Horizontally spaced strips may be provided to allow adjustment of the girth of the gown. The gripping means comprises a tab 12 detachably secured to the overlying flap 5 which preferably consists of a belt package and/or pockets 8, 8<SP>1</SP> in which a band may be inserted. To close the gown a non-sterile assistant inserts a hand in the pocket 8<SP>1</SP> in the underlying flap 4 and grasps the tab 12, only the surgeon being in sterile condition, using the pocket 8 in the overlying flap 5. In a back-fastening gown only a tab 12 is provided. The tab comprises a belt (105), Fig. 8 not shown, folded fanwise within a wrapper (103) with one end (106) projecting beyond the folds but within the wrapper so that it can be grasped together with the wrapper by an assistant whilst the surgeon pulls the other end (104) which extends beyond the wrapper. The gown may be made of laminated scrim reinforced non-woven material the overlapping flap of a front closing gown providing a double thickness of material in the central front area. In a back-closing . gown an extra front layer is secured to the gown at the sleeve seams.
Patent GB-1395406-A (GB)
Title: Ironing press
IPC: D06F71/00
Filed: 1972-12-15
Abstract: 1395406 Ironing presser MEFINA SA 15 Dec 1972 [24 Feb 1972] 58124/72 Heading D1A In an ironing press comprising a buck 2 on a frame 1 and an arm 3 pivotable about the frame 1 by a hand lever 5 which is pivoted to the arm at 6, the pressing head is mounted on the arm 3 by a universal joint 15 associated with two resilient stabilising members 16 (Fig. 3), and cam 11 and spring 10 or other means acting on an extension 7 of the arm to selectively urge the press to an open or a closed position. The head mounting comprises two shafts 27, mounted in aligned bores 28 in bosses 29 of the heating plate of the head 4 and hinged to shafts 23 which are slidable in bores of the arm 3 and urged upwardly by springs 24, and a cardan joint or ball-and-socket joint 15. The axis of the bores 28 is parallel to the pivot axis of the arm 3 on the frame 2 and is offset to the rear of the longitudinal axis of the head 2 to stretch a garment as the press is closed and direct any steam produced to the rear. The head 4 is adjustable relative to the arm 3 by screwing the member 20 with the socket 19 at its end in a threaded boss of the arm 3.  A space is provided between the cover 31 of the pressing head 4 and the heating plate to permit air to pass over the heating plate and out of an upper aperture of the cover 31 to cool it. An insulating layer may also be provided between the heating plate and cover. The lever 5 and arm 3 are urged to the press open or closed position by a pair of rollers 9 engaging parallel fixed cam tracks 11 on the frame 2 and mounted on a slider 8 which is urged by a spring 10 away from the pivot 6 of the lever 5. Resilient stops 12 and 13 for the lever 5 are also provided.
Patent GB-1188050-A (GB)
Title: Signal Holding Circuit
Inventor: BRANDON MARTIN
IPC: G11C27/02
Filed: 1968-12-13
Abstract: 1,188,050. Electronic circuits. STANDARD TELEPHONES & CABLES Ltd. 13 Dec., 1968, No. 59341/68. Heading H3T. A circuit for removing sudden short changes of input signal amplitude comprises an R.C. circuit 3, 4 having a time constant longer than that of an input signal applied thereto, means 6 producing a control signal dependent upon the difference between input and output signals of the circuit and means 2 which disconnects the input when the control signal exceeds a given value, the disconnection ceasing if the difference persists for a given maximum period. As shown the maximum disconnection period is controlled by a time constant circuit 8, 9.
Patent GB-1242709-A (GB)
Title: Bleaching of cellulosic pulp
Inventor: LIEBERGOTT NORMAN
IPC: D21C9/12
Filed: 1968-12-16
Abstract: 1,242,709. Bleaching cellulosic pulp. PULP & PAPER RESEARCH INSTITUTE OF CANADA. 2 Dec., 1969 [16 Dec., 1968], No. 59738/68. Heading D1P. Fibrous cellulosic pulp, e.g. that obtained by the kraft and sulphite process is bleached by contacting a high consistency (i.e. of about 15% by weight) pulp in the form of fluffed or shredded fibres with gaseous chlorine monoxide. The pulp preferably has at least 15% by weight cellulosic content. Throughout the reaction, which may last for 1-60 minutes, the pH of the pulp is maintained in the range 3.5-5.5 and the temperature between 20‹C and 50‹C. Degradation in the viscosity of the pulp is reduced by including ammonia or sulphonic acid in the pulp, or up to 0.05% by weight chlorine dioxide in the chlorine monoxide. The chlorine monoxide may be diluted with a non-reactive gas, e.g. air to a partial pressure below 253 mm. of mercury.
Patent GB-1364109-A (GB)
Title: Inspection apparatus for printed circuit boards
IPC: G01R1/073
Filed: 1971-12-22
Abstract: 1364109 Test probes for printed circuit boards MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 Dec 1971 [25 Dec 1970 (5)] 59806/71 Heading H2E A printed circuit board tester includes a mounting frame 4, Fig. 1, on which printed circuit boards 1 can be clipped 2, and upper 17 and lower 3 inspection head units, each including an inspection head, comprising an array of resiliently mounted contactor probes Fig. 5, which can first be positioned laterally and transversely over (or under) the printed circuit board, and then moved vertically to make contact with the board. The upper array of contactor probes 24, Fig. 2, are moved vertically by 'coarse 31 and fine 25 pneumatic cylinders. The coarse cylinder 31 is supported on a frame including an extension 23 which can be moved laterally and transversely by appropriate screws and guides such as 14, 15, 22, and its piston supports a member 30 which carries the fine cylinder. The vertical movement of the lower array of contact or probes (Fig. 3, not shown) omits the coarse cylinder. Each array of contact probes, Fig. 5, comprises probes 24 resiliently mounted in guides 72 by springs 76 having their upper ends in contact with a printed circuit board 73 brought out to leads 74.
Patent GB-1275819-A (GB)
Title: A rope making machine, particularly for wire ropes
Inventor: COLOMBO MARIO
IPC: D07B3/04
Filed: 1969-12-12
Abstract: 1275819 Rope making machines M COLOMBO 12 Dec 1969 [12 Dec 1968] 60821/69 Heading D1T A rope making machine has a rotor comprising three or more beams S symmetrically disposed about and extending parallel to the axis of rotation of the rotor, and a set of spools B between each adjacent pair of beams such that the wires or the like on the spools can be withdrawn externally of the beams S, each beam S having an external surface which is at least as far from the axis of rotation of the rotor as are the axes of the spools B.
Patent GB-2023356-A (GB)
Title: Fluorescent strip lamp with socket cap
IPC: H01J5/52
Filed: 1978-06-19
Abstract: A fluorescent strip lamp comprising a glass tube (1) with end seals, each having an annular bead (4) and groove (3) forming a collar (5). A flexible cap (10) is fitted over each collar and secured by cams (17) on an inner cap wall snapping into the groove and by adhesive cement, setting within two minutes at room temperature provided on at least one cam. <IMAGE>
Patent GB-2004218-A (GB)
Title: Method and apparatus for pouring molten metal
IPC: B22D11/106
Filed: 1978-09-13
Abstract: A metal stream is protected from atmospheric contamination during casting by shrouding it with an inert gas from a gas source 21 at the pour nozzle 14. The gas is supplied to a low turbulence zone at the nozzle which has a width at least one third of the length of the poured metal stream 19. The gas source may be an annulus surrounding the nozzle and having its inwardly and downwardly facing surfaces of perforated metal sheet 35, Fig. 6, and the outermost surfaces may be disposable in order to tolerate metal splashing. The need for a tube to enclose the protective gas is avoided. <IMAGE>
Patent GB-2017271-A (GB)
Title: Safety Shut-Off Valve
IPC: F16K17/00
Filed: 1979-03-20
Abstract: The valve comprises a valve element 3, a valve seat 20, and spring means 16 biasing the valve element to the closed position. The valve element is carried by an axially movable control rod 5 which is releasably held against the pressure of the spring means by ball detent means comprising an abutment surface 5b on the control rod engageable by a plurality of balls 9 arranged around the path of travel of the control rod for limited radial movement under the influence of a rotary control ring 7 biased by a spring 12 into an operative position in which the balls are urged inwardly. Pneumatic or electric release means are provided for rapidly releasing the control rod by rotating the control ring out of its operative position. <IMAGE>
Patent GB-2045647-A (GB)
Title: Ionizing devices
IPC: B03C3/38
Filed: 1979-03-28
Abstract: An electrostatic air cleaner ionizing device comprising a frame (10, 12, 14, 16) across which is stretched a conductive wire (18) to form a series of parallel passes. The wire is enlarged at opposite ends and passes through openings in the sides of the frame, the wire being bent around to form a U-shape (42, 44) between adjoining openings on each side of the frame, externally thereof. Bushes (24, 26), e.g. of plastics or ceramic, which may have adjustment screws, provide anchorage points at the opposite ends of the wire. Other bushes (34, 36, 38, 40) are also threaded on the wire and constitute guides for the wire as is passes through the openings in the frame. The openings are in the form of open-ended slots into which the wire and/or bushes can be fitted. Springs (50, 52, 54, 56) are provided to tension the wire, and sleeves of electrically insulating material (46, 48) protect the external loops of wire. The sleeves (46, 48) may be of resilient material to tension the wire (18). <IMAGE>
Patent GB-2018977-A (GB)
Title: Engine Lubrication System Having Oil Cooler
IPC: F28D9/00
Filed: 1979-04-09
Abstract: An engine lubrication system (10) comprises an engine oil cooler (20) having a heat-exchanging portion (28), a bypass passageway (32) directly connecting the upstream and downstream sides of the heat- exchanging portion, and a temperature-sensitive valve (36) for controlling the flow of the engine oil passing through the bypass passageway in accordance with the temperature variation of the engine oil, thereby avoiding problems caused by high flow resistance of the engine oil passing through the oil cooler. A second bypass passageway (34) may be provided with a pressure-sensitive valve (38). <IMAGE>